Back to Search Start Over

Late to the Party—Transferred Mulch from Green Manures Delays Colorado Potato Beetle Infestation in Regenerative Potato Cropping Systems

Authors :
Stephan Martin Junge
Simeon Leisch-Waskönig
Julian Winkler
Sascha Michael Kirchner
Helmut Saucke
Maria Renate Finckh
Source :
Agriculture, Vol 12, Iss 12, p 2130 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

The Colorado potato beetle (CPB) is an exceptionally challenging potato pest. Some regenerative farmers have reported that the use of transferred green manure mulch can considerably reduce CBP damage. Previous studies confirm this observation, but mainly with straw mulch, which is rarely used in Central Europe, and not embedded in the new regenerative cropping approach. For this, six trials conducted between 2014 and 2019 were evaluated, comparing CPB infestation in potatoes with and without transferred mulch as well as under a plough as a minimum till regime. In three out of six experiments, compost application was an additional factor. (I) Over all experiments, mulch significantly reduced initial infestation (−24%), egg masses (−27%) and larvae (−75%). Compost and reduced tillage added to these effects; (II) Mulch mainly resulted in delayed CPB infestation; (III) In a particularly warm season, when a second generation of CPB managed to emerge, regulatory effects of the mulch were not sufficient; (IV) Combination of transferred nutrient rich green manure mulch with reduced tillage, compost and other regenerative or agro-ecological techniques is recommended to achieve maximum regulation of CPB.

Details

Language :
English
ISSN :
12122130 and 20770472
Volume :
12
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Agriculture
Publication Type :
Academic Journal
Accession number :
edsdoj.6e2ae854982f476ab057316a00afc427
Document Type :
article
Full Text :
https://doi.org/10.3390/agriculture12122130